According to the first investigations, a single carbide corresponding in composition to the formula Sc4C3 exists in the system Sc — C . However, subsequent investigations have not confirmed the existence of this carbide. A carbide has been obtained corresponding to the formula ScC, which crystallizes in the NaCl-type cubic lattice , and the existence of the carbide Sc2C with a hexagonal structure has been suggested. Vickery and his coworkers  have confirmed the existence of the carbide ScC and found that it has a hexagonal structure; however, this has not been confirmed in subsequent investigations and is evidently incorrect.
KeywordsIron Carbide Titanium Carbide Homogeneity Range Chromium Carbide Vanadium Carbide
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